**The fpe deteoifive," exdaimed Bob.
**His name iail Kraus," said Heinrich. '*He
has a little mus|i(!ache, and in the afternoon he blew
up the nouse/l)ecause he knew we were after him
and hejwisjrfed to destroy all evidence."
**ThiyB when Mt7 Wemberg got hurt," said
Mr. CpJ^j_iySÂ¥nat/was he doing in the house,
Heinrich?" He was amazed at the way the mys-
tery was clearing itself up.
"As I told you," said Heinrich. "He was
looking around for evidence against the gang."
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246 BOB COOK AND THE GERMAN SPY
^^Why didat he notify the police if he was sua-
pidonsf
^^As I told yoU|" repeated Heinrich patiently,
^^he wished to do all himself and when he tamed
those men over to the police no one conld say he
was forced to do it. They sent him lots of warn-
ing notes because they knew he was after them.''
**What did the alligator meanf
''It iss the sign of a secret society; all Oermans
in High Bidge know thai It was that snake
Hoffmann who stole poor Percy to kill him and
hang him up in the room where they had their
office/'
''How long has Karl been a member of the
gangf asked Mr. Cook.
"Ever since Gtermany went to war with Eng-
land,*' said Heinrich. "Nearly three years.'*
'^Bat he never talked as though he sided with
Germany.'*
'*The ones who mean trouble never do,** said
Heinrich. "Karl knew enough to keep his mouth
shut. You see you never suspected him.**
"Tell me about Lena,** exclaimed Mr. Cook.
"Why was she meeting that man Kraus down
town to-night and going around with him if she
was not working with the gang!**
"She pretended to Karl Hoffmann that she was
working mit them. All the time she was acting
as a spy for Mr. Wemberg. Because Karl
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CONCLUSION 247
Hoffmann was in love with her he told her lots
of things, and it was in that way we got most of
our information/'
** Pretty clever, ehf exclaimed Sergeant Biley,
i^provingly.
'^There's another thing, Heinrich," said Mr.
Co<^. **Why wouldn't you read what was
written on that paper to-night f
Heinrich looked sheepish. '^I could not,'' he
said. '^Kraus had become suspicious of L^[ia;
he feared she was going to betray them and the
note was a warning to her. It said that if they
were caught they would see to it that she went to
jail mit them. At that time you were all suspect-
ing poor Lena, and I was afraid you would send
her to jail before she had a chance to prove to you
that she was loyal."
** You're in love with Lena, aren't you?" asked
Mr, Cook.
'*We are to be married," said Heinrich,
proudly, his eyes shining.
^^Did Karl suspect that Lena was treach-
erous?"
^^I think not until he saw that note."
**He was going to read it to us though."
'*He would not have read it," cried Heinrich
hotly. ^'He would have made up something, not
what it said at all."
'*Who shot Lena?"
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248 BOB COOK AND THE GERMAN SPY
^^Kraus shot her. She was going to your
office to warn yon that your factory was going
to be blown np, and he shot her to prevent
that.''
**Who was the man with the whiskers f asked
Bob.
^^His name iss Mueller. He iss the one who set
off the bomb to-nighf
**That's what we thought," exclaimed Bob.
^^Well, Hugh, you hit him one good one anyway,
didn't you!"
**I hope so," said Hugh.
"There was four of them altogether," said
Heinrich. "Kraus, Mueller, Hoffmann, and a
man named Schaef er who went to blow up the rail-
road bridge Friday night and has not been heard
of since."
**We know where he is, don't we, Hugh!"
laughed Bob.
** Where iss he!" demanded Heinrich.
*'In jail, I guess," said Bob. '*We caught him
on the bridge with a bomb."
"Good boys," said Heinrich warmly.
"Why were you so angry when you had to go
with father to-night!" asked Bob. "Where was
your engagement!"
"I was going with Lena to twelve eighty-two
Elm Street, where Sdiaef er lived. You see Lena
was already a member of the gang, so they
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CONCLUSION 249
thought, and I was to join too, so we both could
watch them better."
^^ Somebody telephoned Lena about meeting
them there this evening."
'^Yes, it was Mueller. He thought he had a
recruit in me."
<*Well, Heinrich," said Mr. Cook, '*I guess that
explains pretty nearly everything, and I'm sorry
I ever suspected you." He shook hands warmly.
*^0h, that's all right," smiled Heinrich. **I
had to get suspected with the job I had. That
was part of the game."
At that moment the door bell rang and Dr.
Clarke was ushered in. '*I thought you might be
interested in the hospital patients," he said.
**Mr. Wemberg will recover all right, and
Lena is not badly hurt. She keeps calling all the
time for somebody named Heinrich. Do you
know him?"
**Will you excuse me, Mr. Cook?" exclaimed
Heinrich, and, without waiting for a reply, he
dashed out of the room, nearly falling over two
chairs in his haste to get away to the hospital.
**He seems to be in a hurry, doesn't he?"
laughed the doctor.
**I must be going, too," said Sergeant Biley.
^'I have some boarders down at my hotel who,
may need attention."
'^Well, good-night. Sergeant," exclaimed Mr.
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250 BOB COOK AND THE GERMAN SPY
Cook, shakiiig hands with the doughty c&cer.
^^I'm sorry Ho£Einaim was mixed up in this busi-
ness, bat I'm glad it's all deared np. I hope well
have no more trouble.''
'^Ye won't, as long as yez have two young
fellers like Bob and Hu^ working for yez," ex-
claimed Biley. ^*The United States needs boys
like that; this war is going to be a long and hard
one in my opinion."
**I'm afraid so," Mr. Cook agreed. ''I guess
well come out all right if we all work hard and
stick together though."
"That's it," exclaimed Biley. ''We must all
work together. Our personal feelings d(mt
count It's what our country needs. " -^ »
He said good night all around and went out.
The next morning Bob was out in the yard in-
specting a plot of ground where he was going to
have a garden. He could not enlist, but he was
going to **do his bit" by raising a few vegetables,
and thus help to supply the country with its neces-
sary food. He heard a step behind him and
turned to see Frank Wemberg.
Frank held out his hand. ''Shake hands with
me, Bob," he exdaimed. ' ' I want to tell you that
I was wrong about that the other day, and you
were right."
Bob responded heartily. "Yes," said Frank,
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CONCLUSION 2M
''I was dead wrong. I had thought from the way
father talked that he was pro-German, hut I f onnd
ont that he wasn't at alL When it eame to a ques-
tion of decidmg between his country and Ger-
many there was never any doubt about where he
stood.''
''1 know that, Frank," said Bob. **I wish
every one of German birth or descent ofver here
felt the same way.'*
^^I think most of them do," said Frank.
^^I guess that's right," Bob agreed. ^^Look at
Lena and Heinrieh."
**Well, all I wish now," exclaimed Frank, '*is
that we could enlist"
'^So do I," cried Bob enthusiastically.
^^Wouldnt it be wonderful if you and Hugh and
I could enlist and go together?"
The new adventures are recorded in the story
entitled,
Bob Cook and thb Gxbman Aib Flbct^
THB XKD
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Flag and Country Series
=^T5?>^3
By
PAUL a TOMLINSQN
Cloth U
qy
,URING the World
War the German
Secret Service was
notorious for its ruthless^
ness and for its expanse into
the remotest comers of our
country. Bob Cook and his
friend, too yoimg to enlist,
do "their bit" in diwarting
die efforts of dieseplotters.
His experience with the
German Spy and the
German Air Fleet are most realistic and thrilling.
These are real boys' books for real boys.
1 BOB COOK AND THE GERMAN SPY.
2 BOB COOK AND THE GERMAN AIR FLEET.
Publiihers
BARSE&CO.
NewTotk,N.T. Newmfk^N.J.
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THE BIG WAR SERIES
BOSS KAY
For Boya from It to 1$
Cloth 12 ho. Juxaruato
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IB.
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THE AVIATION SERIES
JOHN FRENTICB LANOLET
Qoch. 12 mo., Bustmud.
is no odier topic of such worlds
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'The Aviation Series** by John Prentice Lans^^
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In diis series you will become acquainted widi
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